There is a strong drive towards hyperresolution earth system models in order to resolve finer scales of motion in the *** problem of obtaining more realistic representation of terrestrial fluxes of heat and water,howe...
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There is a strong drive towards hyperresolution earth system models in order to resolve finer scales of motion in the *** problem of obtaining more realistic representation of terrestrial fluxes of heat and water,however,is not just a problem of moving to hyperresolution grid *** is much more a question of a lack of knowledge about the parameterisation of processes at whatever grid scale is being used for a wider modelling *** grid scales cannot alone solve the problem of this hyperresolution *** paper discusses these issues in more detail with specific reference to land surface parameterisations and flood inundation *** importance of making local hyperresolution model predictions available for evaluation by local stakeholders is *** is expected that this will be a major driving force for improving model performance in the future.
The quality control,validation and verification of the European Flood Alert System(EFAS)are *** is designed as a flood early warning system at pan-European scale,to complement national systems and provide flood warnin...
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The quality control,validation and verification of the European Flood Alert System(EFAS)are *** is designed as a flood early warning system at pan-European scale,to complement national systems and provide flood warnings more than 2 days before a *** average 2030 alerts per year are sent out to the EFAS partner network which consists of 24 National hydrological authorities responsible for transnational river *** control of the system includes the evaluation of the hits,misses and false alarms,showing that EFAS has more than 50%of the time ***,the skills of both the meteorological as well as the hydrological forecasts are evaluated,and are included here for a 10-year ***,end-user needs and feedback are systematically *** improvements,such as real-time river discharge updating,are currently implemented.
将全球集合预报系统(EPS)组成的"THORPEX Interactive Grand Global Ensembl"(TIGEE)降水与水文模型相结合进行洪水预报研究。在洪水预报中使用TIGGE集合预报降水作为水文模型的输入,可以避免"单一"的确定性数值天气预报模型,由于...
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将全球集合预报系统(EPS)组成的"THORPEX Interactive Grand Global Ensembl"(TIGEE)降水与水文模型相结合进行洪水预报研究。在洪水预报中使用TIGGE集合预报降水作为水文模型的输入,可以避免"单一"的确定性数值天气预报模型,由于初值误差、模式误差及大气自身的混沌特性,数值预报降水存在不确定性,延长了洪水预报的预见期。水文模型选择Grid-Xinanjiang水文模型。以淮河息县流域为试验流域,以CMC、CMA、ECWMF、UKMO、NCEP五个气象中心的TIGGE降水驱动Grid-Xinanjiang水文模型。为了进行结果比较,同时利用地面雨量计观测降水驱动水文模型,在2007年7月的息县流域超警洪水预报中进行检验。结果表明在洪水预报的预见期得到了延长,TIGGE降水可以应用于洪水预报。
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